Abstract
Electron scattering from atomic oxygen has been studied at energies from 0.5 to 8.7 eV. Absolute total (elastic plus inelastic) scattering cross sections have been measured by an attenuation method. Differential elastic cross sections from 10 to 150' have been measured with energy analysis of the scattered electrons. The apparatus uses crossed modulated electron and atomic beams with energy selection of the incident electron beam. Absolute cross section values have been determined from the measurement of experimental parameters using the relative gas flow method. A parametrised phaseshift analysis has been made to determine phaseshifts from the measured elastic angular distributions. Integral elastic and momentum transfer cross sections were calculated from those phaseshifts.
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